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flexis300
07-11-2012, 11:56 PM
Just bought a sr20det 240, this is my first sr motor and im making black smoke when i accelerate hard. I was thinking i just needed a retune but im posting just to make sure. Idle is perfect, and the car pulls HARD. Does anyone else know what i can try first before i drop some cash on a retune? thanks

-Aric

CNH7207
07-14-2012, 10:30 PM
black smoke is normal may need slight tuning id have to see it its blue an white you never want to see

Dietcoke
07-14-2012, 11:00 PM
Black smoke is fuel, car is probably way too rich.

RandomGuy
07-15-2012, 01:51 AM
sounds like you're running rich... but then again, almost every 240sx has big black soot stains on the rear bumper so it seems that all the cool kids are doing it lol.

Get it tuned, it'll run even better than it does now!